Hi Susie, My guess is that this was a grandson of Thomas "The Seagull" Green. His son, Thomas, born about 1665, married Elizabeth Marston, the daughter of Judge Thomas Marston and his wife Elizabeth Marvell. This was a prominant family in early Virginia, and they named two of their sons Marston. One son was named Marston Green, born about 1730, who married Elizabeth Apperson, and they were the parents of Col. Grief Green. With the lack of standerdized spelling in this period, I have seen the name spelled several different ways. The other son given this name was, Col. Thomas Marston Green, born November 19, 1723, who married Martha Wills in 1752. This couple names a son Thomas Marston Green, also named a daughter Elizabeth Marston Green. They also named a son Henry Marston Green, so as you can see, the possibility of a Maston Green descending from this family in the 1800 appears quiet possible. Just to give you another example of how a name changed spelling in this family; Thomas "Seagull" Green married Elizabeth Filmer, and one of their sons, William Green, named a son Filmer Green born about 1742. Walker. Filmer Green had a son by the same name, but it was spelled Philmore Green. By the way, I have also seen the name of Marston shown as the middle name of William Green, the son of Thomas "Seagull" Green. Hope this helps! Tom Green